Stone did not result in an increase of structural damage. All plans had high 

 stability coefficients for the harbor- side sections. Plan 5 had the highest 

 K d of the upper sections; however, the middle section of Plan 5 gave the low- 

 est K d -value of the middle sections. Figure 25 shows that damage was 

 slightly higher during the repeat test of Plan 5, which gave a significantly 

 lower nondamaging wave height. If Run 1 is used to obtain the 2 -percent dam- 

 age wave height, K d = 26.0 , which is comparable to the middle sections of 

 Plans 2 and 3. 



50. Transmission coefficients were as high as 0.33 for Plan 1 and 0.34 

 for Plans 2 and 3. Plan 4 consisted of the same armor stone and geometry of 

 Plan 2, but a 9-ft-thick layer of "T" Stone was placed between the existing 

 structure and the proposed armor stone on the harbor side. Transmitted wave 

 heights were reduced, but not to an acceptable level. Plan 5 was identical to 

 Plan 4, except the transition layer was 10 ft thick and composed of "T-l" 

 Stone. The transmission coefficients for Plan 5 were acceptable. 



37 



